The companies asked respondents not only if they remember watching the event on TV, but also where they were when it happened and if they talked with others about it.

The most memorable TV moment of the last 50 years was the 9/11 terrorist attacks, followed by Hurricane Katrina, the OJ Simpson verdict, the Space Shuttle Challenger explosion and the death of Osama bin Laden.

There are lot of other fascinating nuggets, including divergent moments when it comes to men and women, and younger and older respondents. More from the AP here.